Fiat Currency
Definition
Fiat currency is government-issued money that holds value by official decree rather than by being backed by gold, silver, or any physical commodity. Its worth rests on public trust and the issuing authority, not on a fixed claim to metal.
Nearly every currency in circulation today, including the US dollar, the euro, and the yen, is fiat money.
Why it matters
Because fiat currency is not tied to a fixed quantity of metal, a central bank can expand or contract the supply. Over long periods this tends to reduce purchasing power, which is the practical meaning of inflation. Gold is often discussed alongside fiat because its supply grows slowly and cannot be created by policy decision.
Common confusion
Fiat does not mean worthless or unstable. Most fiat currencies function reliably for everyday transactions. The distinction is structural: fiat value depends on confidence in an institution, while a metal-backed claim depends on the metal itself.
How it’s used
The term appears in debates about inflation, monetary policy, and why some investors hold a portion of savings in gold or silver. Understanding it clarifies what gold is and is not being compared against.